Crystal growth of La.sub.2./sub.Zr.sub.2./sub.O.sub.7./sub. by micro-pulling-down method using Mo and W crucibles

0561147 - FZÚ 2023 RIV NL eng J - Článek v odborném periodiku
Suda, T. - Yokota, Y. - Horiai, Takahiko - Yamaji, A. - Yoshino, M. - Hanada, T. - Sato, H. - Toyoda, S. - Ohashi, Y. - Kurosawa, S. - Kamada, K. - Yoshikawa, A.
Crystal growth of La₂Zr₂O₇ by micro-pulling-down method using Mo and W crucibles.
Journal of Crystal Growth. Roč. 575, Dec (2021), č. článku 126357. ISSN 0022-0248. E-ISSN 1873-5002
Institucionální podpora: RVO:68378271
Klíčová slova: growth from melt * single crystal growth * oxides * phosphors
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 1.830, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.jcrysgro.2021.126357

La2Zr2O7 crystals with a melting point of 2283 °C are grown via the micro-pulling-down (μ-PD) method using Mo and W crucibles to expand the possibility of material research of functional single crystals with high melting points by the μ-PD method. La2Zr2O7 crystals grown using Mo and W crucibles under an Ar + 3% H2 atmosphere are composed of a La2Zr2O7 main phase, which includes Mo and W. However, a La2Zr2O7 crystal without W can be grown under an Ar atmosphere using the μ-PD method using a W crucible and deoxygenated ZrO2 insulators. After post-annealing in air at 1000 °C, the La2Zr2O7 crystal without W becomes colorless and transparent, indicating a transmittance exceeding 70% in wavelengths ranging from 450 to 800 nm.

Trvalý link: https://hdl.handle.net/11104/0333830